CN211727773U

CN211727773U - Driving device of gear hobbing machine

Info

Publication number: CN211727773U
Application number: CN202020310202.7U
Authority: CN
Inventors: 樊伟; 路毅; 李秀
Original assignee: Laiwu Taishan Coal Mine Machinery Co ltd
Current assignee: Laiwu Taishan Coal Mine Machinery Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-23
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a drive arrangement of gear hobbing machine relates to gear hobbing machine's technical field, including sliding base, drive screw, bearing frame, driving motor, cycloid pinwheel speed reducer, drive screw and sliding base threaded connection, and drive screw one end rotates with the bearing frame to be connected, and the other end passes the coaxial key-type connection of automobile body and has the cylinder helical gear, cylinder helical gear and cycloid pinwheel speed reducer meshing, the input shaft of cycloid pinwheel speed reducer and driving motor's output shaft coaxial key-type connection, driving motor and cycloid pinwheel speed reducer fixed connection are at the lateral wall of automobile body. The driving device is convenient for workers to adjust the gear hobbing machine, adjustment efficiency is improved, and labor intensity of manual adjustment is reduced.

Description

Driving device of gear hobbing machine

Technical Field

The utility model belongs to the technical field of the technique of gear hobbing machine and specifically relates to a drive arrangement of gear hobbing machine is related to.

Background

The hobbing machine is the most widely used machine tool in gear processing machines, and can machine straight teeth, helical gears, worm gears, chain wheels and the like on the hobbing machine, and the hobbing cutter can machine straight teeth, helical teeth, herringbone gears, cylindrical gears and worm gears according to a generating method.

Referring to fig. 3, the conventional gear hobbing machine includes a body 11, a cutter 12, and a sliding base 1, the cutter 12 and the sliding base 1 are respectively located at two ends of the body 11, the sliding base 1 is slidably connected to the body 11, and the sliding base 1 is further connected to a control mechanism for controlling the distance of the sliding base to the cutter 12. The control mechanism comprises a driving lead screw 2 and a lead screw square head 13. The driving screw rod 2 is in threaded connection with the sliding base 1, and one end of the driving screw rod 2 penetrates through the vehicle body 11 and is fixedly connected with the screw rod square head 13. The staff need rotate lead screw square head 13 through the spanner when adjusting sliding base 1 to make drive lead screw 2 drive sliding base 1 and remove. Because the screw pitch of the driving screw rod 2 is small, the adjustment is laborious and the adjustment efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drive arrangement of gear hobbing machine to be not enough to prior art exists to make things convenient for staff's adjustment sliding base, improve adjustment efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a drive arrangement of gear hobbing machine, includes sliding base, drive lead screw, bearing frame, driving motor, cycloid pin gear speed reducer, drive lead screw and sliding base threaded connection, and drive lead screw one end and bearing frame rotate to be connected, and the other end passes automobile body coaxial key-type connection and has the cylinder helical gear, cylinder helical gear and cycloid pin gear speed reducer meshing, the input shaft of cycloid pin gear speed reducer and driving motor's output shaft coaxial key-type connection, driving motor and cycloid pin gear speed reducer fixed connection are at the lateral wall of automobile body.

Through adopting above-mentioned technical scheme, after the staff installed the work piece on sliding bottom, the staff started driving motor, and driving motor forward rotates, and cycloid pinwheel speed reducer rotates and drives the drive lead screw and rotate, and sliding bottom removes to suitable position back towards being close to the cutter direction under the effect of drive lead screw, and the staff closes driving motor, and the gear hobbing machine begins to process the work piece. Similarly, when the workpiece needs to be taken out from the sliding base, the worker can start the driving motor, and the driving motor rotates reversely, so that the driving screw drives the workpiece on the sliding base to move in the direction of moving away from the tool, and the worker can take out the workpiece. The arrangement of the driving device facilitates the adjustment of workers on the gear hobbing machine, and the labor intensity of workers is reduced.

The utility model discloses further set up to: the sliding base is provided with a long protruding block below, the long protruding block is provided with an internal thread and is in threaded connection with a driving screw rod, and the sliding base is connected with a stable supporting mechanism along two side ends of the running direction.

Through adopting above-mentioned technical scheme, because the work piece is when utilizing the gear hobbing machine to process, on the one hand the gear hobbing machine can be at the in-process of processing towards the work piece blowout a large amount of coolant liquid, and on the other hand the work piece can produce more metal piece when being processed by the gear hobbing machine. The driving screw rod is in threaded connection with the long protruding block below the sliding base, so that metal debris generated in the process of machining is difficult to be deposited on the driving screw rod, and the transmission precision of the driving screw rod is improved. Meanwhile, the coolant can be prevented from being splashed onto the driving lead screw, the corrosion to the driving lead screw is reduced, and the service life of the driving lead screw is prolonged.

The utility model discloses further set up to: the length of the long protruding block is shorter than that of the body of the sliding base along the sliding direction, and the bearing seat is always located below the sliding base.

Through adopting above-mentioned technical scheme, the whole in-process of work piece processing, the one end that the drive lead screw is close to the cutter is covered above by sliding base all the time, and coolant liquid and metal sweeps can drop on sliding base like this, have further reduced the influence of coolant liquid and metal sweeps to the drive lead screw.

The utility model discloses further set up to: the stable supporting mechanism comprises a plurality of rollers, and the rollers are connected with the sliding base in a rolling manner.

Through adopting above-mentioned technical scheme, the setting of gyro wheel can play the supporting role to sliding bottom on the one hand for sliding bottom further keeps stable in operation and work engineering. Meanwhile, the arrangement of the roller wheels is convenient for driving the lead screw to drive the sliding base to move.

The utility model discloses further set up to: the lateral wall of the sliding base is detachably connected with a lateral protection plate, and the lower end of the lateral protection plate is provided with a protection brush.

Through adopting above-mentioned technical scheme, the setting of protection brush for metal sweeps is difficult to pass sliding bottom's below, reduces the sweeps and to gyro wheel pivoted influence.

The utility model discloses further set up to: the side protection plate is connected with the side end of the sliding base through a bolt.

Through adopting above-mentioned technical scheme, can make things convenient for the staff to dismantle the side and prevent the board to overhaul and maintain the drive lead screw of gyro wheel and sliding bottom below.

The utility model discloses further set up to: and the driving motor and the cycloidal pin gear speed reducer are sleeved with protective covers.

Through adopting above-mentioned technical scheme, the setting of protection casing can be established driving motor and cycloid pinwheel speed reducer cover in it, avoids the staff mistake to bump pivoted driving motor and cycloid pinwheel speed reducer and receive the injury to drive arrangement's security has been improved.

To sum up, the utility model discloses a beneficial technological effect does:

1. setting of a driving device: after a workpiece is installed on the sliding base by a worker, the worker starts the driving motor, the driving motor rotates in the forward direction, the cycloidal pin gear speed reducer rotates and drives the driving screw to rotate, the sliding base moves to a proper position towards the direction close to the cutter under the action of the driving screw, the worker closes the driving motor, and the gear hobbing machine starts to machine the workpiece. Similarly, when the workpiece needs to be taken out from the sliding base, the worker can start the driving motor, and the driving motor rotates reversely, so that the driving screw drives the workpiece on the sliding base to move in the direction of moving away from the tool, and the worker can take out the workpiece. The arrangement of the driving device facilitates the adjustment of workers on the gear hobbing machine, and reduces the labor intensity of workers;

2. setting of the convex long blocks: when a workpiece is machined by the gear hobbing machine, on one hand, the gear hobbing machine can spray a large amount of cooling liquid towards the workpiece in the machining process, and on the other hand, the workpiece can generate more metal chips when being machined by the gear hobbing machine. The driving screw rod is in threaded connection with the long protruding block below the sliding base, so that metal debris generated in the process of machining is difficult to be deposited on the driving screw rod, and the transmission precision of the driving screw rod is improved. Meanwhile, the coolant can be prevented from being splashed onto the driving lead screw, the corrosion to the driving lead screw is reduced, and the service life of the driving lead screw is prolonged.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a prior art drawing.

The reference symbols: 1. a sliding base; 2. driving a lead screw; 3. a bearing seat; 4. a drive motor; 5. a cycloidal-pin gear speed reducer; 6. a raised long block; 7. a roller; 8. a side protection plate; 9. a protective brush; 10. a protective cover; 11. a vehicle body; 12. a cutter; 13. a lead screw square head; 14. cylindrical helical gears.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the driving device of a gear hobbing machine includes a sliding base 1, a driving screw 2, a bearing block 3, a driving motor 4, and a cycloidal pin gear reducer 5. The lower part of the sliding base 1 is welded with a long protruding block 6, the long protruding block 6 is provided with an internal thread, and the long protruding block 6 is in threaded connection with the driving screw rod 2. One end of the driving screw rod 2 penetrates through the long protruding block 6 to be rotatably connected with the bearing seat 3, the other end of the driving screw rod penetrates through the coaxial key on the side wall of the vehicle body 11 to be connected with the cylindrical helical gear 14, the helical angle of the cylindrical helical gear 14 is 45 degrees, the cylindrical helical gear 14 is meshed with the cycloidal pin gear speed reducer 5, the input shaft of the cycloidal pin gear speed reducer 5 is connected with the coaxial key of the output shaft of the driving motor 4, the driving motor 4 and the helical gear speed reducer are fixedly connected on the side wall of the vehicle body 11. After a worker fixes and sets a workpiece on the sliding base 1, the driving motor 4 is started and rotates in the forward direction, the cycloidal pin gear speed reducer 5 rotates, and meanwhile, the lead screw 2 is driven to rotate so as to drive the sliding base 1 and the workpiece to move towards the direction of the cutter 12. The manual feeding is changed into the mechanical feeding by the driving device, so that the workpiece and the gear hobbing machine can be conveniently adjusted by workers, the processing efficiency is improved, and the labor intensity of the workers is reduced.

Because a large amount of cooling liquid is sprayed to the workpiece by the gear hobbing machine during the machining process, more metal scraps are generated during the machining process. The length of the projecting long block 6 is set shorter than the length of the body of the slide base 1 in the sliding direction, and the bearing housing 3 is always located below the slide base 1. So that the metal scraps and the cooling liquid hardly influence the transmission of the driving screw 2.

In order to improve the stability of sliding base 1 operation, sliding base 1 all is equipped with stabilizing support mechanism along the both sides end below of slip direction, and stabilizing support mechanism includes a plurality of gyro wheels 7, gyro wheel 7 and sliding base 1 roll connection. On the one hand, the rollers 7 can support the sliding base 1, so that the sliding base 1 is kept balanced. Meanwhile, the arrangement of the roller 7 is also convenient for driving the screw rod 2 to drive the sliding base 1 to slide.

In order to reduce the influence of coolant sprayed and metal scraps generated during machining on the rotation of the roller 7, a side protection plate 8 is detachably connected to the side wall of the sliding base 1, a protection brush 9 is arranged at the lower end of the side protection plate 8, and the protection brush 9 is in sliding fit with a vehicle body 11. Thus, the coolant and the metal shavings are difficult to enter below the slide base 1. In order to facilitate the maintenance of the parts below the sliding base 1 by the workers, the side protection plate 8 is connected with the side end of the sliding base 1 through a bolt.

In order to improve the safety of the driving device, a protective cover 10 is sleeved outside the driving motor 4 and the cycloidal pin gear speed reducer 5.

The implementation principle of the embodiment is as follows: in the initial state, the slide foot 1 is located at the end remote from the hobber knife 12. During adjustment, a workpiece is firstly fixed on the sliding base 1 by a worker, then the driving motor 4 is operated to rotate in the forward direction, the driving motor 4 drives the cycloidal pin gear speed reducer 5 to rotate, and drives the cylindrical helical gear 14 and the driving screw rod 2 to rotate, and the sliding base 1 is in threaded connection with the driving screw rod 2 through the long protruding block 6, so that the driving screw rod 2 rotates to drive the sliding base 1 to move towards the direction of the cutter 12, and the worker can conveniently process the workpiece.

When in machining, the gear hobbing machine sprays a large amount of cooling liquid towards a workpiece and generates more metal scraps at the same time, and the cooling liquid and the metal scraps are difficult to enter the lower part of the sliding base 1 under the action of the side protection plate 8 and the protection brush 9 so as to reduce the influence on the movement of the roller 7.

After the processing is finished, the worker starts the driving motor 4 to rotate reversely, the driving motor 4 drives the cycloidal pin gear speed reducer 5 to rotate, and the cylindrical helical gear 14 and the driving screw 2 are driven to rotate, so that the driving screw 2 rotates to drive the sliding base 1 to move towards the direction away from the cutter 12, and the worker can take down the workpiece conveniently.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a drive arrangement of gear hobbing machine, includes sliding base (1), its characterized in that still includes drive lead screw (2), bearing frame (3), driving motor (4), cycloid pinwheel speed reducer (5), drive lead screw (2) and sliding base (1) threaded connection, and drive lead screw (2) one end rotates with bearing frame (3) and is connected, and the other end passes automobile body (11) coaxial key-type connection and has cylinder helical gear (14), cylinder helical gear (14) and cycloid pinwheel speed reducer (5) meshing, the input shaft of cycloid pinwheel speed reducer (5) and the output shaft coaxial key-type connection of driving motor (4), driving motor (4) and cycloid pinwheel speed reducer (5) fixed connection are at the lateral wall of automobile body (11).

2. The driving device of the gear hobbing machine according to claim 1, characterized in that a long protruding block (6) is arranged below the sliding base (1), the long protruding block (6) is provided with an internal thread, the long protruding block (6) is in threaded connection with the driving screw (2), and two side ends of the sliding base (1) along the running direction are connected with stable supporting mechanisms.

3. A drive device of a gear hobbing machine according to claim 2, characterized in that the length of the protruding long block (6) is shorter than the length of the body of the slide base (1) in the sliding direction, and the bearing seat (3) is always located below the slide base (1).

4. A drive arrangement of a gear hobbing machine according to claim 2, characterized in that the stable support means comprise a plurality of rollers (7), the rollers (7) being in rolling connection with the slide foot (1).

5. A drive device of a gear hobbing machine according to claim 4, characterized in that the side wall of the slide foot (1) is detachably connected with a side guard (8), and the lower end of the side guard (8) is provided with a protective brush (9).

6. A drive arrangement of a gear hobbing machine according to claim 5, characterized in that the side shield (8) is connected with the slide foot (1) side end by means of bolts.

7. The drive device of the gear hobbing machine according to claim 1, characterized in that the protective cover (10) is sleeved on the drive motor (4) and the cycloidal pin gear reducer (5).